Here's a breakdown of the different types of symbiosis:

* Mutualism: Both organisms benefit from the interaction. For example, a bee pollinating a flower gets nectar, and the flower is pollinated.

* Commensalism: One organism benefits, while the other is neither harmed nor helped. For example, a bird nesting in a tree. The bird benefits from the shelter, while the tree is not affected.

* Parasitism: One organism benefits at the expense of the other. For example, a tapeworm living in a human's intestines. The tapeworm benefits from the food, while the human is harmed.

Important note: Symbiotic relationships can be either obligate, where the organisms are entirely dependent on each other, or facultative, where the organisms can survive independently.